Veterans exposed to burn pits in Iraq and Afghanistan are begging government leaders and the public to keep paying attention to their crippling health problems. “We write because these veterans are seriously ill, dying or have passed away, and more must be done,” a group of 700 veterans and family members with Burn Pits 360 wrote in an open letter to President Barack Obama on Thursday. “Many of us went to war able to run marathons, but now our health has deteriorated so much that we cannot hold down steady jobs. “We are misdiagnosed. We are not getting the medical care we urgently need. We need you to act in this, your final year in office.”